期刊
WATER RESEARCH
卷 39, 期 5, 页码 877-883出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2004.11.023
关键词
solar; disinfection; photocatalyst; TiO2; protozoa; fungi; bacteria; cysts; spores
The ability of solar disinfection (SODIS) and solar photocatalytic (TiO2) disinfection (SPC-DIS) batch-process reactors to inactivate waterborne protozoan, fungal and bacterial microbes was evaluated. After 8 h simulated solar exposure (870 W/m(2) in the 300 nm 10 pm range, 200W/m(2) in the 300-400 nm UV range), both SPC-DIS and SODIS achieved at least a 4 log unit reduction in viability against protozoa (the trophozoite stage of Acanthamoeba polyphaga), fungi (Candida albicans, Fusarium solani) and bacteria (Pseudomonas aeruginosa, Escherichia coli). A reduction of only 1.7 log units was recorded for spores of Bacillus subtilis. Both SODIS and SPC-DIS were ineffective against the cyst stage of A. polyphaga. (c) 2004 Elsevier Ltd. All rights reserved.
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